1FRS

CRYSTAL STRUCTURE OF BACTERIOPHAGE FR CAPSIDS AT 3.5 ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1FRS/pdb

• Classification: VIRUS
• Organism(s): Enterobacteria phage fr
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1994-08-16 Released: 1996-04-03 
• Deposition Author(s): Liljas, L., Valegard, K., Bundule, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.50 Å
• R-Value Free: 
  0.236 (Depositor) 
• R-Value Work: 
  0.228 (Depositor), 0.240 (DCC) 
• R-Value Observed: 
  0.228 (Depositor) 

Literature

Crystal structure of bacteriophage fr capsids at 3.5 A resolution.

Liljas, L., Fridborg, K., Valegard, K., Bundule, M., Pumpens, P.

(1994) J Mol Biol 244: 279-290

• PubMed: 7966339 
• DOI: https://doi.org/10.1006/jmbi.1994.1729
• Primary Citation of Related Structures:  
  1FRS


• PubMed Abstract: 
  

  The structure of recombinant capsids of the bacterial virus fr has been determined by X-ray crystallography at 3.5 A resolution. The capsids were produced by expressing the fr coat protein in Escherichia coli, the natural host of the virus, and are probably essentially identical to the protein shell of the native virus. The structure was determined using molecular replacement with the protein shell of the related MS2 virus, and refined to a crystallographic R-factor of 0.228. A comparison of the protein shells of the viruses shows that they are very similar, and indicates that they may have a similar regulation of the assembly of the quasi-symmetrical protein shell.

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Organizational Affiliation: 

Department of Molecular Biology, Uppsala University, Sweden.

Biological Assembly 1  

Global Symmetry: Icosahedral - I  (Explore in 3D)
Global Stoichiometry: Homo 180-mer - A180 

Biological assembly 1 assigned by authors and generated by (software)

Macromolecule Content

• Total Structure Weight: 41.24 kDa 
• Atom Count: 2,898 
• Modelled Residue Count: 387 
• Deposited Residue Count: 387 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BACTERIOPHAGE FR CAPSID	A, B, C	129	Enterobacteria phage fr	Mutation(s): 0
UniProt
Find proteins for P03614 (Enterobacteria phage fr) Explore P03614  Go to UniProtKB:  P03614

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.50 Å
• R-Value Free:  0.236 (Depositor) 
• R-Value Work:  0.228 (Depositor), 0.240 (DCC) 
• R-Value Observed: 0.228 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 422.9	α = 90
b = 305.9	β = 129.8
c = 274.8	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-04-03 
Deposition Author(s): Liljas, L., Valegard, K., Bundule, M.

Revision History  

• Version 1.0: 1996-04-03
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2023-04-19
  Type: Remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Other, Refinement description
• Version 2.1: 2024-05-22
  Changes: Data collection